US5489807A - Domestic appliance for processing foods - Google Patents

Domestic appliance for processing foods Download PDF

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Publication number
US5489807A
US5489807A US08/073,126 US7312693A US5489807A US 5489807 A US5489807 A US 5489807A US 7312693 A US7312693 A US 7312693A US 5489807 A US5489807 A US 5489807A
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US
United States
Prior art keywords
adapter body
appliance
electric
power pack
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/073,126
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English (en)
Inventor
Mariano P. Sanjuan
Jose M. Antolino
Alejandro H. Estaregui
Vicente S. Olive
Juan T. Noya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Braun GmbH
Original Assignee
Braun GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Assigned to BRAUN AKTIENGESELLSCHAFT reassignment BRAUN AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANTOLINO, JOSE MILLAN, ESTAREGUI, ALEJANDRO HERNANDEZ ESTAREGUI, NOVA, JUAN TORNE, OLIVE, VICENTE SAFONI, SANJUAN, MARIANO PENARANDA
Application granted granted Critical
Publication of US5489807A publication Critical patent/US5489807A/en
Assigned to BRAUN GMBH reassignment BRAUN GMBH CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: BRAUN AKTIENGESELLSCHAFT
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J43/08—Driving mechanisms
    • A47J43/082—Driving mechanisms for machines with tools driven from the upper side
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J45/00—Devices for fastening or gripping kitchen utensils or crockery
    • A47J45/02—Devices for fastening or gripping kitchen utensils or crockery for fastening kitchen utensils to tables, walls, or the like

Definitions

  • This invention relates to a domestic appliance for processing foods, with a basic device accommodating an electric switch and an electric motor, as well as electrical connecting means for connection to an electrical power supply, with the basic device including an electric accumulator for operation independently of the line, in addition to being adapted to be connected to a power pack.
  • a domestic appliance of this type is already known from DE-B-11 26 082.
  • the electric motor is adapted to be connected by means of a switch to an accumulator housed in the basic device of the domestic appliance, or, by means of a plug-and-socket connection provided on the housing, to the accumulator of a motor vehicle, for example, or, by means of a transformer provided in the power cord, to the public electricity supply.
  • a switch to an accumulator housed in the basic device of the domestic appliance, or, by means of a plug-and-socket connection provided on the housing, to the accumulator of a motor vehicle, for example, or, by means of a transformer provided in the power cord, to the public electricity supply.
  • a domestic appliance powered by an electric motor independently of the line is known in which a wall mount equipped with a charging stand is provided into which the domestic appliance has to be fitted for recharging the accumulators received in the appliance.
  • the domestic appliance can only be operated from the accumulators, eliminating the possibility of using the domestic appliance when the accumulators are run down or defective.
  • the basic device includes an electric switching arrangement which, in a first switching position, provides for connection of the electric motor to the accumulator and which, in a second switching position, provides for connection of the electric motor and the accumulator to the power pack, that an electric line cord connects the power pack to an adapter body adapted to be mechanically connected with the basic device, and that the mechanical connection between the basic device and the adapter body also causes the electric switching arrangement to be brought into its second switching position.
  • a domestic appliance which permits tasks having low electrical power requirements as, for example, whisking and whipping, to be performed independently of the line without the inconvenience of a power cord, and in which a connection to the available electric service energy is only necessary for tasks having high power requirements as, for example, the kneading of dough.
  • the domestic appliance of the present invention which is easy to maneuver in practical use, a structure functionally clear to an operator is accomplished.
  • an operator may continue working with the domestic appliance using external service energy simply by fitting the adapter onto the domestic appliance, without the need for long recharging intervals.
  • the adapter body ensures an automatic electrical operating mode protected against faulty operation by means of which the electric switching arrangement is actuatable.
  • the processing tasks having low power requirements need no speed control of the drive, so that it is sufficient to equip the power pack with a speed control device, as provided in a preferred embodiment of the present invention.
  • a speed control device as provided in a preferred embodiment of the present invention.
  • a particularly safe securing is accomplished by providing for the adapter body and the basic device to be adapted to be in positive engagement with each other, it being particularly suitable for practical manipulation when the means providing positive engagement between these two parts is a biased locking device releasable by means of a release device.
  • a storage possibility for the complete appliance which is essential for its use in practice is afforded in that the housing of the power pack possesses a receptacle for the adapter body and the basic device, it being advantageous with respect to the securing against accidental disengagement of this connection if a lock-down connection is provided between the adapter body and the housing of the power pack.
  • a one-hand control possibility essential for practical use is obtained in that the resisting force of the lock-down connection acts in the direction in which the basic device is removable from the adapter body.
  • FIGS. 1 to 3 are greatly simplified views of different modes of operation of the device
  • FIG. 4 is a perspective view of the basic device, absent the end of the shank where the tool for processing the food is provided, with the switching arrangement being shown with the adapter body disengaged therefrom;
  • FIG. 5 is a view of the locking mechanism integrated into the switching arrangement, as seen looking down on the basic device of FIG. 4;
  • FIGS. 6 and 7 are two views of the adapter body
  • FIG. 8 is a view of the housing of the power pack
  • FIG. 9 is a detail view of the lock-down button provided in FIG. 8 on the underside of the receptacle.
  • FIG. 10 is a schematic of the electrical circuitry.
  • FIG. 1 shows a basic device 1 preferably configured as an immersion blender in its parking position.
  • the entire household appliance is composed of the basic device 1, an adapter body 2 adapted to be coupled therewith, and a power pack 3 configured as a wall mount, with the power pack 3 being electrically connected to the adapter body 2, and through the adapter body to the basic device, by means of a cord 4.
  • FIG. 2 shows the line-independent mode of operation of the immersion blender 1.
  • the basic device 1 is disengaged from the adapter body 2 in the manner to be subsequently described, with the adapter body remaining within the wall mount 3.
  • FIG. 3 shows the immersion blender 1 in the line mode of operation in which the basic device 1 is maintained in engagement with the adapter body 2. Both devices 1, 2 are withdrawn from the wall mount as one, the basic device 1 receiving its energy from the electricity supply (not shown) through the cord 4.
  • FIG. 4 shows the basic device 1 which--as becomes also apparent from FIG. 10--comprises an electric motor 5, an On/Off switch 6, an accumulator 7 (only in FIG. 10), and a switching arrangement 8.
  • the housing of the basic device 1 of FIG. 3 is configured as an essentially cylindrical body 34 provided with steps 9, 35, 36 and continuing in downward direction in a cylindrical shank 27 having at its end a bell structure 28 open in downward direction.
  • the bell structure 28 receives a processing tool (cutter) 30 which is in driving relationship to the electric motor 5 through a drive shaft 29 centrally located inside the shank 27.
  • the bell structure 28 is provided with slots 31 extending approximately horizontally on the periphery to allow better circulation of the foods during blending or chopping.
  • a recessed grip 9 lies diametrically opposite the On/Off switch 6.
  • a ridge 10 which, arranged at center, extends diametrically over the full diameter and has its end 32 aligned flush with the circumferential surface 33 of the cylindrical body 34. Both the On/Off switch 6 and the release button 11 are in relative alignment, protruding equally from the circumferential surface 33.
  • a respective latch member 12 projects from the side walls 37 of the ridge 10.
  • respective electrical contacts 13 of the three poles P, C and N are indicated on the side walls 37.
  • An actuating button 14 protrudes from the upper side 38 of the ridge 10 in ramp shape. It serves to actuate the switching arrangement 8.
  • the actuating button 14 of FIG. 4 will be pushed down automatically when the ridge 10 is inserted into the corresponding groove 15 of the adapter body 2 shown in FIG. 6.
  • the lateral boundary walls 39 of the groove 15 are each provided with respective recesses 16 for potential engagement with the latch members 12 of the basic device 1.
  • contacts 17 are provided on these walls 39 to establish electrical connection with each other following latching engagement of the basic device 1 with the adapter body 2.
  • the latch members 12 are biased by a spring 18 bearing thereon about their respective bearing pins 40 such that their latching portions 43 move out of the ridge 10 in the direction of arrows 41.
  • the bearing pins 40 are arranged normal to the direction of insertion X (FIG. 4) of the basic device 1, that is, according to FIG. 5 they lie ahead of the latching portions 43 when looking down into the interior of the adapter body 2, enabling the latch members to be readily displaced into the interior of the ridge 10 in opposition to the force of the spring 18 through their sloping portions 19.
  • Displacement of the release button 11 in the direction Y enables the latch members 12 to pivot inwardly into the inner chamber 42, causing them to become disengaged from the recesses 16 (FIG. 6).
  • the conical portion 20 of the release button 11 bears against the sloping surfaces 44 of the latch members 12.
  • the spring 18 and the latch members 12 return the release button 11 to its outer position. As this occurs, the latching portions 43 will automatically move out of the side walls 37 of the openings 45.
  • the circular-disk shaped adapter body 2 has on its side 46 facing away from the groove 15 a central V-shaped indentation 21.
  • the indentation 21 serves for engagement of a locking button 22 located in the housing of the power pack 3 on the underside 47 of the receptacle 48.
  • the receptacle 48 serves to receive the adapter body 2 as is clearly shown in FIGS. 1 and 2.
  • the cord 4 is routed in a duct 50.
  • Adjoining the receptacle 48 when viewing the FIGS. 1, 2, 3 and 8 is a cylindrical receptacle 51 serving to receive the body 34.
  • FIG. 9 the locking button 22 is biased in the direction of the adapter body 2, that is, in downward direction when viewing the drawing, by a compression spring 49.
  • FIG. 8 further shows a rotary knob 23 for speed control as well as a pilot lamp 24 which, for example, may serve as a charging indicator light for the accumulator 7.
  • the power pack 3 includes, in addition to the actual power supply unit 25 converting the A.C. line voltage to a substantially lower D.C. voltage, a speed control device 26 as well as a circuitry 56 enabling the power pack 3 to be operated also as a recharger.
  • the circuitry 56 incorporates a current limiter and a diode protecting against accumulator discharge.
  • contact 13 is provided with three poles comprising single contacts P, C and N--for clarity of illustration, contacts 13 are shown in FIG. 10 as being provided on respective end surfaces 36, 52 rather than on the side walls 37, 39, that is, in a horizontal plane which may also be contemplated.
  • Contact N is directly connected to the electric motor 5 through conductor 53, and contact P through conductor 54 and the On/Off switch 6 inserted therein.
  • N stands for negative, P for positive, and C for charge.
  • Accumulator 7 has its negative terminal connected to conductor 53 connecting contact N to the electric motor 5. With the actuating button 14 not actuated, accumulator 7 has its positive terminal connected to conductor 54 between contact P and the On/Off switch 6.
  • the switching arrangement 8 When the actuating button 14 is pushed down which occurs by coupling the basic device 1 with the adapter body 2 (FIGS. 1, 3), the switching arrangement 8 operates to connect the positive terminal of the accumulator 7 to contact C, enabling the accumulator 7 to be recharged.
  • the adapter body 2 When the basic device 1 is removed from its parking position shown in FIG. 1 by operation of the release button 11, the adapter body 2 will remain within the housing of the power pack 3 as shown in FIG. 2, which is due to the effect of the locking button 22 in the housing of the power pack 3. Being biased by a spring not shown, the actuating button 14 will be pushed upwardly, causing the switching arrangement 8 to assume the position shown in FIG. 10 in which the accumulator 7 is connected to the On/Off switch 6. This thus results in a line-independent mode of operation of the immersion blender 1 in which, however, a speed control through the power pack 3 is not possible unless, of course, the immersion blender is equipped with a built-in control of its own.
  • the actuating button 14 and the switching arrangement 8 cause the accumulator 7 to remain disconnected from the On/Off switch 6, the switching arrangement 8 then establishing a connection between the accumulator 7 and the charging conductor C. Because in this condition the contacts 13 and 17 co-act with one another, the accumulator can be recharged; moreover, the basic device 1 can be operated on the line, enabling the operating speed to be varied as desired using the rotary knob 23 which operates on the speed control device 26.
  • the electrical switch-over within the basic device 1 is performed automatically by its engagement with, or disengagement from, the adapter body 2. This eliminates the possibility of faulty operation, the more so since the actuating button 14 is not accessible from the outside when the device is in the line mode. With the immersion blender in the accumulator mode, accidental operation of the actuating button 14 merely turns off the appliance.
US08/073,126 1992-06-20 1993-06-07 Domestic appliance for processing foods Expired - Fee Related US5489807A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4220233.7 1992-06-20
DE4220233A DE4220233A1 (de) 1992-06-20 1992-06-20 Haushaltsgerät zum Bearbeiten von Lebensmitteln

Publications (1)

Publication Number Publication Date
US5489807A true US5489807A (en) 1996-02-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
US08/073,126 Expired - Fee Related US5489807A (en) 1992-06-20 1993-06-07 Domestic appliance for processing foods

Country Status (5)

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US (1) US5489807A (de)
EP (1) EP0575723B1 (de)
AT (1) ATE141474T1 (de)
DE (2) DE4220233A1 (de)
ES (1) ES2090760T3 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213815A2 (de) * 2000-12-01 2002-06-12 S-B Power Tool Company Stromversorgungssysteme für Kraftwerzeuge
WO2007020135A1 (de) * 2005-08-17 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Multifunktionaler halter für einen stabmixer
US20090015195A1 (en) * 2007-07-04 2009-01-15 Hartmut Loth-Krausser Device with Electric Appliance and Charging Station
US20090213685A1 (en) * 2005-08-17 2009-08-27 Bsh Bosch Und Siemens Haugerate Gmbh Electric-Motor Kitchen Appliance Comprising an Electric or Electronic Control
EP2216871A3 (de) * 2009-02-04 2012-01-18 Zweibrüder Optoelectronics GmbH & Co. KG Ladestation
US9915467B1 (en) 2016-11-02 2018-03-13 Sheila Mosley Refrigerator with integrated multi-speed blender
US20180353039A1 (en) * 2017-06-08 2018-12-13 Vorwerk & Co. Interholding Gmbh Method for operating a household appliance with an accumulator
WO2020118224A1 (en) * 2018-12-06 2020-06-11 Columbia Insurance Company Modular appliance apparatus configured for multiple attachments

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220233A1 (de) * 1992-06-20 1993-12-23 Braun Ag Haushaltsgerät zum Bearbeiten von Lebensmitteln
US7557534B2 (en) * 2005-05-17 2009-07-07 Milwaukee Electric Tool Corporation Power tool, battery, charger and method of operating the same
DE102005038923A1 (de) * 2005-08-17 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Ladesystem für ein akkubetriebenes Küchengerät
DE102005038926A1 (de) * 2005-08-17 2007-03-22 BSH Bosch und Siemens Hausgeräte GmbH Akkubetriebenes elektromotorisches Küchengerät

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126082B (de) * 1960-12-16 1962-03-22 Dr Hermann Neuhierl Kuechenmaschine
DE1221919B (de) * 1960-01-11 1966-07-28 Sperry Rand Corp Elektrisches Rasiergeraet fuer Batteriebetrieb
DE1248875B (de) * 1967-08-31 ESGE Export A G Glarus (Schweiz) Netzunabhangiges, elektromotorisch angetne benes Handmischgerat
FR1554399A (de) * 1967-02-17 1969-01-17
US3525912A (en) * 1966-03-28 1970-08-25 Scovill Manufacturing Co Selectable power source for a motor driven appliance
US3710224A (en) * 1970-12-31 1973-01-09 Sperry Rand Corp Display stand for rechargeable battery operated appliance
US4413211A (en) * 1981-12-23 1983-11-01 Fowler Ricky C Control circuit for electrical appliances
US4620110A (en) * 1985-07-15 1986-10-28 General Electric Company Compact power supply module and cord
US4672292A (en) * 1985-05-14 1987-06-09 Black & Decker Inc. System for charging sets of rechargeable batteries
EP0341395A1 (de) * 1988-05-11 1989-11-15 Wella Aktiengesellschaft Vorrichtung für ein elektrisches Gerät
EP0575723A1 (de) * 1992-06-20 1993-12-29 Braun Aktiengesellschaft Haushaltsgerät zum Bearbeiten von Lebensmitteln

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248875B (de) * 1967-08-31 ESGE Export A G Glarus (Schweiz) Netzunabhangiges, elektromotorisch angetne benes Handmischgerat
DE1221919B (de) * 1960-01-11 1966-07-28 Sperry Rand Corp Elektrisches Rasiergeraet fuer Batteriebetrieb
DE1126082B (de) * 1960-12-16 1962-03-22 Dr Hermann Neuhierl Kuechenmaschine
US3525912A (en) * 1966-03-28 1970-08-25 Scovill Manufacturing Co Selectable power source for a motor driven appliance
FR1554399A (de) * 1967-02-17 1969-01-17
US3710224A (en) * 1970-12-31 1973-01-09 Sperry Rand Corp Display stand for rechargeable battery operated appliance
US4413211A (en) * 1981-12-23 1983-11-01 Fowler Ricky C Control circuit for electrical appliances
US4672292A (en) * 1985-05-14 1987-06-09 Black & Decker Inc. System for charging sets of rechargeable batteries
US4620110A (en) * 1985-07-15 1986-10-28 General Electric Company Compact power supply module and cord
EP0341395A1 (de) * 1988-05-11 1989-11-15 Wella Aktiengesellschaft Vorrichtung für ein elektrisches Gerät
US5159256A (en) * 1988-05-11 1992-10-27 Wella Ag Per Parent Adaptor/holder for rechargeable electrical tool
EP0575723A1 (de) * 1992-06-20 1993-12-29 Braun Aktiengesellschaft Haushaltsgerät zum Bearbeiten von Lebensmitteln

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6573621B2 (en) 2000-12-01 2003-06-03 S-B Power Tool Company AC/DC power supply system for power tools
EP1213815A3 (de) * 2000-12-01 2005-10-26 S-B Power Tool Company Stromversorgungssysteme für Kraftwerzeuge
EP1213815A2 (de) * 2000-12-01 2002-06-12 S-B Power Tool Company Stromversorgungssysteme für Kraftwerzeuge
US8757287B2 (en) 2005-08-17 2014-06-24 Bsh Bosch Und Siemens Hausgeraete Gmbh Electric-motor kitchen appliance comprising an electric or electronic control
WO2007020135A1 (de) * 2005-08-17 2007-02-22 BSH Bosch und Siemens Hausgeräte GmbH Multifunktionaler halter für einen stabmixer
US20090213685A1 (en) * 2005-08-17 2009-08-27 Bsh Bosch Und Siemens Haugerate Gmbh Electric-Motor Kitchen Appliance Comprising an Electric or Electronic Control
US20090015195A1 (en) * 2007-07-04 2009-01-15 Hartmut Loth-Krausser Device with Electric Appliance and Charging Station
EP2216871A3 (de) * 2009-02-04 2012-01-18 Zweibrüder Optoelectronics GmbH & Co. KG Ladestation
US9915467B1 (en) 2016-11-02 2018-03-13 Sheila Mosley Refrigerator with integrated multi-speed blender
US20180353039A1 (en) * 2017-06-08 2018-12-13 Vorwerk & Co. Interholding Gmbh Method for operating a household appliance with an accumulator
US10813513B2 (en) * 2017-06-08 2020-10-27 Vorwerk & Co. Interholding Gmbh Method for operating a household appliance with an accumulator
WO2020118224A1 (en) * 2018-12-06 2020-06-11 Columbia Insurance Company Modular appliance apparatus configured for multiple attachments
US11590467B2 (en) * 2018-12-06 2023-02-28 Columbia Insurance Company Modular appliance apparatus configured for multiple attachments

Also Published As

Publication number Publication date
EP0575723B1 (de) 1996-08-21
DE4220233A1 (de) 1993-12-23
ES2090760T3 (es) 1996-10-16
ATE141474T1 (de) 1996-09-15
EP0575723A1 (de) 1993-12-29
DE59303480D1 (de) 1996-09-26

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Owner name: BRAUN AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SANJUAN, MARIANO PENARANDA;ANTOLINO, JOSE MILLAN;ESTAREGUI, ALEJANDRO HERNANDEZ ESTAREGUI;AND OTHERS;REEL/FRAME:006574/0982

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Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362